Two Sum
EasyArraysGiven an array of integers nums and an integer target, return indices of the two numbers such that they add up to target. You may assume that each input would have exactly one solution, and you may not use the same element twice. You can return the answer in any order.
Examples
Input: nums = [2,7,11,15], target = 9
Output: [0,1]
// nums[0] + nums[1] = 2 + 7 = 9
Input: nums = [3,2,4], target = 6
Output: [1,2]
Constraints
- · 2 ≤ nums.length ≤ 10⁴
- · -10⁹ ≤ nums[i] ≤ 10⁹
- · -10⁹ ≤ target ≤ 10⁹
- · Only one valid answer exists.
Interviewer notes (private)
Evaluation rubric
Correctness
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Does the solution produce correct results?
Time/Space Efficiency
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Is the complexity appropriate?
Communication
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Does the candidate explain their thinking?
Code Quality
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Is the code clean, readable, maintainable?
Overall score— / 5